ides (noun)

1. In Shakespeare's play Julius Caesar, the ides of March is the date on which Caesar is assassinated.

2. The painting depicts a group of Romans gathered at the Forum on the ides of July.

3. On the ides of October, the Roman people used to celebrate the festival of Jupiter.

4. In the science fiction novel, the protagonist travels back in time and accidentally arrives on the ides of May, altering history.